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本人有一辆嘉陵JH90摩托车,平时严格按保养要求进行保养。当该车骑行了约4000公里时,四挡行车,车速低于40公里每小时,一切正常,当车速接近40公里每小时时,加油门车速反而下降,需大幅度加油门车速才能超过40公里每小时。我分析此故障可能是化油器、空气滤清器过脏或损坏引起的,因此清洗了化油器,并用高压空气清理了空滤器,路试故障没有消除。此后我又查阅了
I have a Jialing JH90 motorcycle, usually in strict accordance with maintenance requirements for maintenance. When the car rode about 4000 km, the fourth gear, the speed of less than 40 km per hour, everything is normal, when the speed close to 40 km per hour, the fuel door speed but decreased significantly increase the throttle speed to more than 40 Km per hour I analyzed the failure may be carburetor, air filter is too dirty or damaged caused, so clean the carburetor and clean the air filter with high-pressure air, road test failure has not been eliminated. Then I checked again